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Display device realzing a virtue image

A technology for displaying equipment and images, applied in the direction of optical filters, optics, instruments, etc., can solve problems such as unstable optical systems and increased physical space

Active Publication Date: 2020-06-30
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the display device, the physical space may be increased, or the optical system for realizing the virtual image may be unstable

Method used

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  • Display device realzing a virtue image
  • Display device realzing a virtue image
  • Display device realzing a virtue image

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Experimental program
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Embodiment approach

[0028] figure 1 is a diagram schematically showing a display device according to an embodiment of the present invention and a moving path of light. Figure 2A is an enlarged view showing a single pixel region P of the display device according to the embodiment of the present invention. Figure 2B yes figure 1 Magnified view of the R region in .

[0029] refer to figure 1 , Figure 2A with Figure 2B , the display device according to the embodiment of the present invention may include the display panel 100 . The display panel 100 may realize the virtual images I1, I2, and I3 provided to the user. The virtual images I1, I2, and I3 implemented by the display panel 100 may be delivered to the user through the windshield WS. For example, the display device according to the embodiment of the present invention is a head-up display device that realizes driving information and / or warnings required by the driver on the windshield WS in the form of a virtual image.

[0030] The d...

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PUM

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Abstract

Display device realzing a virtue image. A display apparatus providing a virtual image to user is provided. The display apparatus may include a hologram optical element on a path of light emitted froma display panel. The display panel may emit light having different peak wavelength ranges. The reflection angle or the refraction angle recorded in the hologram optical element is different accordingto the peak wavelength range. Thus, the display apparatus may provide a plurality of virtual images having different focal lengths to the user without physical movement or mechanical operation of thedisplay panel.

Description

technical field [0001] The present invention relates to a display device for providing virtual images to a user. Background technique [0002] Display devices can provide information to users through virtual images. For example, a head-up display device can implement driving information and / or warnings in the form of a virtual image on the windshield of a car. Therefore, in an automobile having the display device, the driver's viewing can be sufficiently secured. [0003] However, a display device implementing a virtual image may have a single focal length. Therefore, when a virtual image through a display device is realized on a real image, a user may perceive a difference due to a physical space difference between the real image and the virtual image. The display device can use multiple display panels or move the positions of the display panels according to the virtual images to be realized, so as to change the focal length of each virtual image. Therefore, in a displa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0103G02B2027/0196G02B2027/0112B60K35/23B60K2360/29B60K2360/31G02B5/32G02F1/1335G02B5/20B60K35/00H10K59/50B60K2360/25B60K2360/33
Inventor 朴株成朴明秀
Owner LG DISPLAY CO LTD